**1. Introduction**

The introduction of varieties and hybrids with high stable yields, high quality products, resistant or tolerant to drought, low temperatures, the most aggressive pathogens and pests, low agricultural background is used in solving problems of resource conservation and environmental protection from destruction and pollution, contributes to the production of environmentally clean products [1–3].

In the process of evolution, native varieties of Crimea developed the properties to grow and produce good quality crops in the conditions of arid climate on poor rocky soils and on soils with a high level of salinity and liming [4, 5]. Changes of climate on our planet lead to the modification of adaptability of plants to the effects of biotic and abiotic environmental factors [3, 5–7]. In its turn it is expressed in changes of phenology, agrobiology and crop quality parameters [8–11]. The adaptive ability of Crimean native grape cultivars is possible to increase by method of hybridization.

Selection program of grape varieties in the Institute "Magarach" is based on the study of the world gene pool and world trends [8, 12]. In this light, the creation of a new generation of grape varieties - analogues of the Crimean local varieties - highly productive and high quality, carrying genetic adaptability to environmental conditions, while possessing genetically determined signs of resistance to biotic and abiotic factors, is relevant for today. The study of the issue of grape plant resistance, development of practical breeding ways, the study of variability and heredity, the main economic-valuable traits allows us to eventually create and introduce adaptive grape varieties into the industry. New varieties should play an important role in ecologization of viticulture industry.
